package com.gupao.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableAuthorizationServer;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerSecurityConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configurers.ResourceServerSecurityConfigurer;
import org.springframework.security.oauth2.provider.token.store.redis.RedisTokenStore;

@Configuration
public class OAuth2ServerConfig {
	private static final String GUPAO_RESOURCE_ID = "order";
	
	@Configuration
	@EnableResourceServer
	protected static class ResourceServerConfiguration extends ResourceServerConfigurerAdapter{

		@Override
		public void configure(ResourceServerSecurityConfigurer resources) throws Exception {
			resources.resourceId(GUPAO_RESOURCE_ID).stateless(true);
		}
		
		
		@Override
		public void configure(HttpSecurity http) throws Exception {
			http.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.IF_REQUIRED)
			.and()
			.requestMatchers().anyRequest()
			.and()
			.anonymous()
			.and()
			.authorizeRequests()
			 .antMatchers("/product/**").access("#oauth2.hasScope('select')")
			.antMatchers("/order/**").authenticated();
		}
	}
	
	@Configuration
	@EnableAuthorizationServer
	protected static class AuthorizationServerConfiguration extends AuthorizationServerConfigurerAdapter{
		
		@Autowired
		AuthenticationManager authenticationManager;
		
		@Autowired
		RedisConnectionFactory redisConnectionFactory;
		
		@Autowired
		UserDetailsService userDetailsService;

		@Override
		public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
//			clients.inMemory()
//			.withClient("app_client")
//			.resourceIds(GUPAO_RESOURCE_ID)
//			.authorizedGrantTypes("client_credentials","refresh_token")
//			.scopes("select")
//			.authorities("app")
//			.secret("123456")
//			.and()
//			.withClient("web_client")
//			.resourceIds(GUPAO_RESOURCE_ID)
//			.authorizedGrantTypes("password","refresh_token")
//			.scopes("query")
//			.authorities("web")
//			.secret("123456");

		}
		
		@Override
		public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
			endpoints.tokenStore(new RedisTokenStore(redisConnectionFactory))
			.authenticationManager(authenticationManager).userDetailsService(userDetailsService)
			.allowedTokenEndpointRequestMethods(HttpMethod.GET, HttpMethod.POST);
			
		}

		@Override
		public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
			security.allowFormAuthenticationForClients();
		}

		
	}
}
